gistfile1.rb

module Blah
  include DataMapper::SphinxResource
  # repository(:default) properties
  # repository(:search) sphinx properties
  
  #--
  # Pagination provided by dm-is-paginated
  # http://github.com/lholden/dm-is-paginated/tree
  # You could just as easily brew the pagination yourself, it's very simple:
  # http://github.com/lholden/dm-is-paginated/blob/670509c97d6fe298d2314dafbe1db91eff759ee5/lib/dm-is-paginated/is/paginated.rb
  def self.search(options)
    page     = options.delete(:page) || 1
    per_page = options.delete(:per_page) || 5

    # Search sphinx. This is an all search since we need the total for the page_count.
    docs = repository(:search){ self.all(options) }
    ids  = docs.map{|doc| doc[:id]}
    
    page_count = (ids.size.to_f / per_page).ceil
    [page_count, all(:id => ids, :limit => per_page, :offset => (page - 1) * per_page)]
  end
end